Mining-machine.



No. 684,353. Patented Dot. 8, |90I. H. B. DlERDORFF.

MINING MACHINE.

(Application led Apr. 2, 1886.)

(No Model.)

4 Sheets-Sheet I.

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H. B. DIEBDURFF. MINING MACHINE.

(Application led Apr, 2, 188B (No Modal.)

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WVM/moo@ M No. 684,353. Patented Oct. 8, |90I. H. B. DIERDURFF;

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(Application lod Apr. 2, 1888.) v I (Ro Model.) 4 Sheets-Sheet 3.

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(Application med Apr. 2, 1886.)

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UNITED STATES `v#PATENT EEICE'..

HENRY E. DIERDCREF, CE COLUMBUS, CHIC', ASSIGNOR To Tnt: I'.ECHN`ER MANUFACTURING COMPANY, on SAME PLACE.

MINING-MACHINE.

sPEozrrcArroN forming 10a-ft of Letters Patent No. 684,3 53, atea october s, 190i; Appnwnonmeanprn2,1886. Santino'. 197,558. cromati.)

To all whom, it may concern.-

Beit known that I, HENRY B. DIERDCRFF, a citizen of the United States, residing at Oolumbns, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Mining-Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

Figure lis a plan View of my improved machine. Fig. 2 is a rear View. Fig. 3 is a vertical section on line a' zr, Fig. 1. Fig. 4 isa section of the nut and its adjacent parts'detached.

My improvements relate chiefiy to the means for advancing the cutter-bar into and withdrawing the same from the coal, as will be explained.

For convenience in illustrating my invention I have shown it applied to a machine which in many of its details of construction is similar to those now commonly in use.

Referring to the drawings, A A are the side pieces of the stationary frame or bed and are commonly called by me channel-bars, because of their being provided upon their inner faces with channels or grooves to receive and support T- bars B B, to be hereinafter more particularly described. These channelbars are connected with each other and supported at suitable distances apart by means of girths C C with an additional girth ortie C2 at the rear end of the machine and when desired a corresponding one at the front end thereof, the girths being securely bolted to the channel-bars at suitable intervals. As indicated in Fig. 2, blocks o c are formed upon the lower members C of the girths to furnish additional supports for the channel-bars. As shown in Fig. 1, the central girth has its end portions out oif even with the upper surface of the channel-bars.

The vertical webs B B of the T- bars fit closely the grooves in the inner faces of the channel-bars, their horizontal webs b b being of such width as to facilitate the bolting thereto of many of the operative parts of the machine, such as the shaft-bearin gs, cross-girths, the additional braces D D, and the engines or primary power devices.

E is the cutter-bar, mounted in bearings attached to shoes at the forward ends of tlie carriage or 'cutter-frame.

F (see Fig. 3) is the driving-chain shaft, mounted at its ends in bearings bolted to the T- bars, and F is the driving-chain, connecting the shaft F with the cutter-bar, both of which are provided with sprocket-wheels to receive the chains.

G G are the cylinders, mounted on the carriage or cutter-frame,which consists of the T- bars and the girths and braces bolted thereto.

H is the crank-shaft, carrying eccentrics h h, which are connected with the valve-stems g g by means of eccentric-rods.

For the purpose of supporting a portion of the shafting I propose to employ upright frames or vertical bearing-plates H' H', (see Fig.k 3,) one on either side of the machine, bolted to the T- bars.

t' is a pinion Von the crank-shaft meshing with the spur-gear l on a secondary or intermediate shaft J, which in turn carries a pinionj, meshing with a spur-gearf on the driving-chain shaft F.

h' is a worm on the crank-shaft H, engaging with a worm-wheel .7c on feed-shaft K, which at its opposite end carries a spur-pinion 7c', loosely thereon. The hub of pinion k' is ratchet-faced upon one side and can be connected with shaft K at will by means of a corresponding ratchet-faced clutch K2, which is splined to the shaft, but can slide thereon.

In order to move the carriage, I employ a mechanism comprising two threaded members, one being a cylindrical externallythreaded bar and the other a hollow internally-threaded nut which revolves around the threaded bar and is adapted to engage therewith on all sides, and one of which members is reversible and double-speeded, so that it can be utilized for effecting a slow advance of the cutters and a rapid withdrawal of them.

L represents a bar or shaft of the sort referred to and constitutes one of the said threaded members, and the nut at M', surrounding said shaft, constitutes the other.

M is a gear-wheel mounted on the axis of the threaded shaft and engaged with the rotatable part of the carriage-feeding mechanism, it being shown as connected with the nut and adapted to move along the threaded IOS shaft. The nut is carried by the hollow or tubular shaft m, actuated by and preferably secured to the wheel M concentrically with the latter and with the shaft L. A mounting 5 is provided by the frame at N. As the nut at M revolves in one direction it advances the cutters into the coal, the construction and arrangement of parts being such that when the engine is running in the direction indi- Io catedby the arrow, Fig. 3, and the clutch K2 is engaged with the wheel 7s the advancing of the carriage and cutters occurs.

For the purpose of withdrawing the cutters from the coal I employ the following gearing: Upon the counter-shaft J there is a bevelgear O, meshing with another bevel-gear 0 on the recede-shaft P, which carries at its opposite end a pinion p, loosely mounted. 79 is a sliding clutch splined to shaft P and 2o engaging with the ratcheted hub of spurgear p This gear also meshes with the wheel M, the relation of parts being such that when the engine isdriven in the direction indicated by the arrow, Fig. 3, and the clutch p is engaged with the spur-gear p (therelutch K2 being withdrawn from pinion 7d) the cutters and cutter-frame will be withdrawn from the coal. The feed-shaft K is mounted in bearings Q, attached to the in- Ward-projecting rib of one of the T-bars, and the recede-shaft is mounted on bearings R, attached to the cutter-frame. S is a shipping-lever pivoted at s to a supporting-standard T, attached to the cutter-frame. This shipping-lever may have forks taking into grooves in the clutches p K2, so that by a single movement of the lever the direction of travel of the cutter-frame may be reversed, and so that also both clutches may be with- 140 drawn from their respective pinions and the engine permitted to run without moving the cutter-frame in either direction on the main I do not limit myself to the specific arrangement ofthe s hafting, clutches, dac., which have been selected for illustration, as in this respect there can be modiflcationswithout departing from the invent-ion.

It willbe seen that I provide essentially a 5o prime power-shaft actuated by the engine or motor, a main power-shaft geared to the prime shaft, a chain-actuated cutting apparatus driven by the main shaft, and a carriagemoving mechanism having a feed-bar supported on the bed and having a carriagedriving shaft (such as the hollow shaft M) with a rotary part (such as a nut) geared to this feed-bar, together with intermediate shafting betweenv the main shaft and the 6o` rotary carriage-feeding gear, gear-wheels loosely sleeved on said intermediate shafting, rever'sely-arran ged clutch jaws or sections on this intermediate shafting, and means for holding the clutch-jaws out of engagement withsaid loose Wheels and for moving them into such engagement. A y

Prior to the date of this patent it has been proposed to arrange the engine or motor, the

prime shaft, the main shaft, and the carriagemoving gearing in a modied manner, thoughV 7o with several of the essential features of relatio'n and construction herein shown, and in connection with a modified form of'chain-aetuated cutting apparatusthat is to say, it has been proposed to secure the cutters directly to the chain and in lieu of the threaded feed-bar and nut geared thereto to employ the well-known racks and pinions and to use an electric motor, and while I do not herein claim specifically such mechanisms I wish it 8o Y to be understood that they present some of the equivalent modified constructions and arrangements which I have above referredto.

I herein mention the fact that the two jaws or sections of the clutch are reversely arranged, meaning thereby that they are so related to the carriage-feed mechanism that they will alternately reverse the direction of the carriage. It will be understood, of course,

that these clutch jaws or sections are soa'r- 9o ranged that there is a neutral position forV both of them-that is, a position where they are both out of engagement with their opposing wheels, as otherwise the carriage would be necessarily in motion constantly in one V direction or the other. By having a neutral position for the clutch-jaws the carriage can Y Y be stopped at the rear end of its travel Yor Y whenever desired.

It will be understood that in the'draw-ings Ioo I have not intended to illustrate working dimensions, dac., but to present, more or less conventionally, the essential features of relationship of the several parts. A relatively short bed-frame is illustrated, but with rero'5VV speet to all such matters the maker can adapt the parts to accomplish any desired purpose.

With respect to the patent to Lander it has already been fully noted that his construction differs materially from that hereinV Idro` Y in requiring that the gear-wheel which rotates the nut should itself be bodily moved away a;

from one driving-gear to another one. In the present construction the gear which vturns the rotary feed member is rigidly secured to Y' Y it and the action of reversal is eected at a, distant point-namely, by means of a clutch Y which is supported independently of the n'u't or other rotary member. VIt is thought uuresult, as they will be readily understood byl those acquainted with the art. t

What I claim is` A l. Inamining-maehine,astationaryframe, a carriage-moving barsecured thereto, a movable frame, a motor or engine mounted on 'said movable frame, a main shaft arranged vadJacent to and parallel with the prime power'- shaft of said motor or engine and adapted to be driven thereby, a carriage-driving shaft 13o"VV mounted on said movable frame and havingy a gear thereon adapted to engage with said? carriage-movlng bar on the bed, intermediate shaftiUg, gearing for driving said intermedi- 'necessary to dwell upon the differences in 12o Y ate shafting from said main shaft, gear-wheels loosely sleeved on said intermediate shaftin g, reversely-arranged clutch-jaws mounted to slide upon said intermediate shafting and splined to rotate therewith, and arranged to engage said sleeved gears respectively when shifted, gearing actuated by said sleeved gears for actuating said carriage driving shaft, means for normally maintaining said clutch -jaws out of engagement with said sleeved gears, cutters supported upon and across the front end of the carriage, a chain for driving the cutters, and a gear mounted on said main shaft adapted to engage and drive said chain-actuated cutting apparatus, as and for the purpose set forth.

2. In a mining-machine, the combination of a bed-frame, a carriage, a cutting apparatus on the carriage, a prime power-shaft, a second or main shaft, slowing-down gearing connecting the prime shaft and the main shaft, carriage-feeding mechanism having a rotary reversible double-speeded member, an intermediate power-shaft between the main shaft and the rotary feed member, worm-gearing connecting the main shaft and the intermediate shaft, a gear-wheel rigid with the rotary feed member, a wheel permanently connected to said gear-wheel and mounted loosely on the intermediate shaft, a clutch interposed between said worm-gearing and said loose gear-wheel whereby a relatively slow speed can be imparted to the rotary feed member for advancing the-carriage, a withdrawing mechanism permanently geared to the rotary feed member, and a clutch for connecting the withdrawing mechanism with the powershafts, when the advancing mechanism is disconnected, substantially as set forth.

3. ln a mining-machine, the combination of the bed, the carriage, the cutting apparatus on the carriage, the engine or motor, the prime power-shaft, the main shaft geared thereto, a carriage-feed mechanism having a reversible double-speeded member on the carriage engaging with a member on the bed, an intermediate shaft mounted independently of the rotary feed member and rotating on an axis parallel to that of said rotary feed member, a wheel rigidly secured to the rotary feed member, a wheel on the said intermediate shaft permanently geared to and reversible with the rotary feed member, a clutch for imparting power to the last said gear-wheel to move the carriage in one direction, and reversible gearing connected to the rotary feed member for driving it in the opposite direction, substantially as set forthA a. In a mining-machine, the combination of the bed-frame, the cu tter-frame, the carriagemoving mechanism having an externallyscrew-threaded member and a hollow nut surrounding said threaded member and engaging therewith on all sides, of which carriagemoving parts one is adapted to rotate and be reversed, a gear-wheel on the axis of the threaded member of the carriage moving mechanism, and rigidly connected to the rotatable part of such mechanism, a carriagefeeding shaft parallel to the threaded member of and connected by a relatively slowmoving gearing to the rotatable part of the carriage-moving mechanism, a supplemental carriage-withdrawing shaft also parallel to the threaded member of the carriage-moving mechanism,and a relatively fast-moving gearing connecting said shaft to the rotatable part of the carriage-moving mechanism, substantially as set forth.

5. In a mining-machine, the combination of the bed-frame, the cutter-carrying frame, the power-shaft, a bevel-wheel driven thereby, a carriagemoving mechanism having an externally-threaded member and a hollow nut surrounding said threaded member and engaging therewith on all sides, of which carriage-moving part-s one is rotatable and reversible, a gear-wheel on the axis of the threaded member of the carriagemoving mechanism, and connected to the rotatable part of such mechanism, a relatively slowmoving gear for feeding the cutters, and the recede mechanism having parallel to the threaded member of the carriage-moving mechanism a supplemental shaft with a loosely-mounted gear-wheel, a clutch, and a bevel wheel engaging with the aforesaid bevel-wheel whereby relatively fast motion is received from the power-shaft, and imparted to the rotatable part of the carriage-moving mechanism, substantially as set forth.

6. In a mining-machine, the combination of a bed-frame, a cutter-carrying frame, the cutting apparatus on the last said frame, the continuously rotating high speed powershaft, the power-transmitting devices connecting the engine to the cutters, a carriagemoving mechanism having an externallyscrew-threaded member and a nut surrounding said threaded member and engaging therewith on all sides, one of which carriage-moving parts is rotatable and reversible, a gearwheel rigidly connected to the rotatable part of the carriage-moving mechanism, and advancing with the carriage', a second gearwheel engaged with the aforesaid gear-wheel to drive it, a continuously-rotating shaft supplemental to the high-speed power-shaft carrying the said second gear-wheel, a clutch on said shaft for rigidly connecting thereto the said wheel whereby the carriage is moved in one direction, and a third rotary shaft driven by the power-shaft for moving the carriage in the opposite direction, substantially as set forth.

7. In a mining-machine, the combination of the carriage-frame, the cutters thereon, the bed-frame, the power mechanism and the carriage-m ovin g mechanism, ofthe three car riage-moving wheels M, k', and p, on separate shafts, and the two-part clutch having one part on the shaft of wheel la', and the other on the shaft of wheel 1J, substantially as set forth.

IIO

8. In a mining-machine, the combination of Vthe bed, the carriage, tlie cntting apparatis on the carriage, the engine or motor on the carriage, the prime power-shaf t, the main 5 shaft geared to the prime power-shaft and actuating the ntti'ng apparatus, a carriagefeed m'eehanism having a reversi-ble rotary member on the carriage engaging with a member arranged longitudinally of the bed,

1o a -gea'r'rgdly secured to the rotary feed'member for ldriving it, intermediate shaftingbe'- tween the main shaft and the reversible feed member, gearing on the intermediate shafting permanently connected with the driving-gear 15 fast on the rotary feed member, and two sets Aof differentlyspeeded power devices 'Y ported by the intermediate shafting, Vone for Y advancing the carriage and one for Withdrawing it, and a tWo-part'elutch Supported on the intermediate shafting independently of the rotary feed member, for alternately connecting said two trains of power devices tov said rotary feed member, substantially as set forth. n

In testimony whereof I affix my signature in presence of two Witnesses. Y j Y HENRY B. DIERD'ORFF. Y Witnesses:

FRANK A. DOWNERD, KATE E. WILLIAMS. 

